Switch



FIG. 1 is a perspective view of a switch;

FIG. 2 is a side view thereof;

FIG. 3 is a bottom view thereof; and,

FIG. 4 is a top view thereof.

The broken lines in the drawings are included for the purpose of illustrating portions of a switch that form no part of the claimed design. 

CLAIM The ornamental design for a switch, as shown and described. 